PHP 在花括号内获取值

Question

到目前为止我有这个：

$response = json_decode($response, true);
foreach ($response['result'] as $loc)
{
        echo "" . $loc['metadata'] ."\n";
};

这输出：

{   
    "name":"Bob",
    "image":"test.png",
    "description":"Test",
    "edition":"1",
    "size":"50x50",
    "type":"G",
    "location":"900,0",
    "attributes":[
        {
            "trait_type":"Location",
            "value":"900,0"
        },
        {
            "trait_type":"Size",
            "value":"50x50"},
        {
            "trait_type":"Type",
            "value":"G"
        }
    ]
}

我如何获得“位置”的价值？

编辑：

foreach ($response['result'] as $loc) {
    foreach ($loc['metadata'] as $lo) {
        $lo = json_decode($lo, true);
        echo "" .$lo['location'] . "\n";
    };
    //echo "" . $loc['metadata'] ."\n";
};

Answer 1

您需要 json 解码$loc['metadata']中存在的内部 JSONString

foreach ($response['result'] as $loc) {
    $meta = json_decode($loc['metadata']);
    echo $meta['location'] ."\n";
}